"A firm is showing off a full colour active matrix OLED display prototype at a show today. Universal Display Corporation, which has had part funding from the US Department of Defence, will talk at the Fifth Annual Flexible Displays and Microelectronics conference in Phoenix today. The firm will show off a four inch diagonal display and demo it running full motion video. The display is .1mm thick, and weighs only six grams, compared to a glass LCD which would weigh about 20-30 grams. The firm said that using a metal foil helps thermal and mechanical durability."